The Worst Episodes of Cosmos: When Science Lost Its Way

If you’re a fan of the Cosmos TV series, then you know that it’s a journey through the vast expanse of the universe that is both informative and awe-inspiring. However, even the most dedicated fans can admit that not every episode is a winner. Whether it’s a dull topic or a presentation that falls flat, there are some episodes that are just downright terrible. In this listicle, we’re taking a look at the worst episodes of Cosmos. So, buckle up, grab some popcorn, and get ready to journey through the cosmos of disappointment.
Seven Wonders of The New World

Seven Wonders of The New World

Season 2 – Episode 13

Air Date: 2020-04-20

Take a trip to the 2039 New York World’s Fair, where the problems we now consider hopeless have been solved and thrilling possibilities exist.

The Cosmic Connectome

The Cosmic Connectome

Season 2 – Episode 5

Air Date: 2020-03-23

A voyage of discovery through the evolution of consciousness with stops in ancient Greece, a visit to the largest life form on Earth, into the poignant dream of an abandoned orphan that opened the way to our understanding of the architecture of thought and beyond to a vision of a galactic network of thought.

Lost City of Life

Lost City of Life

Season 2 – Episode 3

Air Date: 2020-03-16

A new vision of genesis at the bottom of the blood red sea of the infant Earth. And the story of the man who found the first clues to life’s beginning in a green jewel. As he searched for life’s origin, he risked his own, daring to toy with his Nazi tormentors.

The Man of a Trillion Worlds

The Man of a Trillion Worlds

Season 2 – Episode 6

Air Date: 2020-03-23

A child lies on the rug of a tenement dreaming of interstellar adventures. At the dawn of the space age, a young Carl Sagan’s career is forged in the clash of his mentors, two scientific titans. Sagan goes on realize his childhood dreams, to carry their research forward and communicate its significance to the whole world.

Shadows of Forgotten Ancestors

Shadows of Forgotten Ancestors

Season 2 – Episode 11

Air Date: 2020-04-13

An exploration of human potential for change, concluding with the story of one of history’s greatest monster and his virtuous transformation.

Coming of Age In The Anthropocene

Coming of Age In The Anthropocene

Season 2 – Episode 12

Air Date: 2020-04-13

A baby is born on the day the show premieres. What kind of world can she expect to grow up in? One of her possible futures is explored.

A Tale of Two Atoms

A Tale of Two Atoms

Season 2 – Episode 10

Air Date: 2020-04-06

How a deadly embrace between science and state altered the fate of the world, and a gripping cautionary tale of mass casualty and unlikely survival.

Sisters of the Sun

Sisters of the Sun

Season 1 – Episode 8

Air Date: 2014-04-27

Discover the remarkable story of Annie Jump Cannon and Cecilia Payne, two incredible women who challenged conventional wisdom and uncovered the real-life story of the stars. Cannon led a group of female astronomers in the early 20th century to catalogue the spectral characters of stars, and two decades later, young British beauty Payne joined forces with Cannon to analyze the data and uncover the chemical compositions of the stars. Later, travel on the Ship of the Imagination to explore the lives and deaths of stars.

The Lost Worlds of Planet Earth

The Lost Worlds of Planet Earth

Season 1 – Episode 9

Air Date: 2014-05-04

The Ship of the Imagination embarks on a journey through space and time to grasp how the autobiography of the Earth is written in its atoms, its oceans, its continents and all living things. Later, American geologist Marie Tharp creates the first true map of Earth’s ocean floor, and discovers microscopic life that exists deep beneath the ocean.

The Clean Room

The Clean Room

Season 1 – Episode 7

Air Date: 2014-04-20

To determine the true age of the Earth, geochemist Clair Patterson developed the uranium-lead dating method to make an unprecedented discovery – calculating Earth’s age of 4.5 billion years. But Patterson’s groundbreaking discoveries were just beginning. Patterson made it his mission to draw public attention to the detrimental effects of lead in the environment and dedicated his career to fighting against the petroleum and chemical industry, eventually achieving public health’s biggest victory of the 20th century.

Ladder to the Stars

Ladder to the Stars

Season 2 – Episode 1

Air Date: 2020-03-09

An adventure spanning billions of years into the evolution of life and consciousness. A visit to a 100,000-year-old laboratory. The story of the change in life-style that radically altered human existence and the life of the heretic who found god in the book of nature, opening our way to the stars.

The Search for Intelligent Life on Earth

The Search for Intelligent Life on Earth

Season 2 – Episode 7

Air Date: 2020-03-30

A revelation of the hidden underground network that is a collaboration of four kingdoms of life, and a true first contact story between humans and beings who communicate in a symbolic language and have maintained a representative democracy for many tens of millions of years.

The Sacrifice of Cassini

The Sacrifice of Cassini

Season 2 – Episode 8

Air Date: 2020-03-30

The mysterious untold story of the scientist who figured out how to go the Moon while fighting for his life in a WWI trench. He wrote a letter to fifty years in the future. It made the Apollo Mission possible. And the saga of the twenty-year long odyssey of a robotic explorer ordered to commit suicide on another world.

The World Set Free

The World Set Free

Season 1 – Episode 12

Air Date: 2014-06-01

The Ship of the Imagination travels to our near neighbor Venus, where we begin our journey to discover the long history of global warming and the greenhouse effect. Later, explore the detrimental effects of climate change and trace the magnitude of our impact on the Earth’s atmosphere. However, with knowledge, technology and science within our grasp, imagine a hopeful future where we dedicate our efforts to taking care of our home, Planet Earth.

The Fleeting Grace of the Habitable Zone

The Fleeting Grace of the Habitable Zone

Season 2 – Episode 2

Air Date: 2020-03-09

There is no refuge from change in the cosmos. There will come a time in the life of the Sun when Earth will no longer be a home for us. The story of our ancestors who rose to a comparable challenge and a long-term vision of our future on other worlds.

Magic Without Lies

Magic Without Lies

Season 2 – Episode 9

Air Date: 2020-04-06

Meet the man who stumbled on a hole in the reality of quantum mechanics and the still-unfolding technology that made it possible.

Some of the Things that Molecules Do

Some of the Things that Molecules Do

Season 1 – Episode 2

Air Date: 2014-03-16

Host Neil deGrasse Tyson is on a voyage to explore the relatedness of all living things and the possible evolution of life in the cosmos. Go on a journey to discover how artificial selection turned the wolf into canine breeds and how natural selection sculpted the complex human eye. Later, Tyson visits the grand Hall of Extinction, a monument to all the broken branches on the tree of life. Retrace the story of life on Earth and the unbroken thread that stretches from the first one-celled organisms to human life.

A Sky Full of Ghosts

A Sky Full of Ghosts

Season 1 – Episode 4

Air Date: 2014-03-30

An exploration of how light, time and gravity combine to distort our perceptions of the universe. We eavesdrop on a series of walks along a beach on summer nights in the year 1809. William Herschel, whose many discoveries include the insight that telescopes are time machines, tells bedtime stories to his young son, John, who will grow up to make some rather profound discoveries of his own.

Deeper, Deeper, Deeper Still

Deeper, Deeper, Deeper Still

Season 1 – Episode 6

Air Date: 2014-04-13

The Ship of the Imagination ventures on an epic voyage to the bottom of a dewdrop to explore the universe on the smallest scale and observe exotic life forms invisible to the naked eye. Then, host Neil deGrasse Tyson explains the neural network in our brains which determine our sense of smell and memory, and later, he travels deep beneath the surface of the Earth to discover the most mysterious particle we know.

The Immortals

The Immortals

Season 1 – Episode 11

Air Date: 2014-05-18

The Ship of the Imagination travels across the cosmos to discover the possibility of beings that live forever and explain why other civilizations perish. Then, visit the Cosmic Calendar of the Future and contemplate what lies ahead with a hopeful vision.